Md. Code, State Finance and Procurement § 17–109

(a) An action on a payment bond required by this subtitle shall be filed in the appropriate court of the county where:

(1) the contract was executed and performed; or

(2) the contractor has its principal place of business.

(b) An action on a payment bond required by this subtitle shall be filed within 1 year after the public body finally accepts the work performed under the contract.

(c) An obligee named in a bond or a trustee for any other security is not liable for any costs in connection with an action on a payment bond required by this subtitle.